The Barbary macaque (Macaca sylvanus), also known as Barbary ape or magot, is a macaque species native to the Atlas Mountains of Algeria and Morocco along with a small introduced population in Gibraltar. It is one of the best-known Old World monkey species. The Barbary macaque is of particular interest because males play an atypical role in rearing young. Because of uncertain paternity, males are integral to raising all infants. Generally, Barbary macaques of all ages and sexes contribute in alloparental care of young.